Make is_intrinsic
query return the intrinsic name
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@ -335,7 +335,7 @@ fn check_terminator<'tcx>(
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// within const fns. `transmute` is allowed in all other const contexts.
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// This won't really scale to more intrinsics or functions. Let's allow const
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// transmutes in const fn before we add more hacks to this.
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if tcx.is_intrinsic(fn_def_id) && tcx.item_name(fn_def_id) == sym::transmute {
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if matches!(tcx.intrinsic(fn_def_id), Some(sym::transmute)) {
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return Err((
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span,
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"can only call `transmute` from const items, not `const fn`".into(),
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